Gas Struts for Trailer Lid
Gas Struts for Trailer Lid, Gauteng Supply & Fitting for Luggage, Camping & Utility Trailers
Correct Newton rating, correct length, fitted right. Gas It Lift supplies gas struts for trailer lids across Gauteng. 24-month warranty. Same-day dispatch available. Call +27 71 080 5429.
Gas Struts for Trailer Lids That Stay Open and Hold Their Position
Gas struts for trailer lids do one job: hold the lid open without effort so you can load, pack, or access your trailer without using your hands or hunting for a prop stick. When a strut fails, the lid drops, and on a heavy steel trailer cover that becomes a real injury risk. Gas It Lift supplies gas struts for trailer lid applications across Gauteng, matching the correct extended length and Newton force rating to your specific lid weight and hinge configuration.
For most standard luggage trailers and camping trailers used across Johannesburg, Pretoria, and Centurion, a set of 400N to 500N struts measuring 400mm to 435mm extended length is the right starting point. The combined Newton rating across both struts should roughly match the weight of your lid, so a lid weighing 45kg needs approximately 400N to 450N total. Get the sizing wrong and the lid either won't stay open or will slam shut under its own weight.
Gas It Lift Struts identifies the correct specification for your trailer before supplying. Call or WhatsApp with your lid dimensions and weight and the team will confirm the right gas lift, gas shock, or gas spring combination for your setup.
Key Takeaways
- Most trailer lids need 400N to 500N gas struts, 400mm to 435mm extended length
- Combined Newton rating should match the lid weight for correct hold force
- Extended length should equal roughly half to two-thirds of the lid's total length
- Incorrect force rating causes lid drop or excessive resistance when opening
- Gas It Lift Struts supplies and fits trailer gas struts across Gauteng
- 24-month warranty on all struts, nationwide courier delivery available
How to Size Gas Struts for a Trailer Lid Correctly
Two measurements determine whether your gas strut for trailer lid will work properly: the extended length and the Newton force rating. Get both right and the lid opens smoothly, stays open under load, and closes with light pressure. Get either wrong and you're back to the prop stick.
Extended Length
The extended length of your gas strut should sit between half and two-thirds of your trailer lid's total length. A 700mm lid, for example, needs a strut with an extended length of roughly 350mm to 465mm. The compressed length then determines how much the strut collapses when the lid closes, which needs to clear your trailer's internal dimensions without binding.
Newton Force Rating
The Newton rating is the push force the strut delivers. For a single strut, the rating should equal the full lid weight in force terms. For two struts, each strut carries half. A steel trailer lid weighing 45kg, which is common on enclosed utility trailers, needs approximately 440N total, either one 440N strut or two 220N struts depending on your hinge layout. Gas springs work on sealed nitrogen pressure, so the force rating is fixed at manufacture and cannot be adjusted after the fact. Ordering correctly the first time avoids the cost of a second set.
| Lid Weight (kg) | Recommended Newton Rating (Total) | Typical Extended Length |
|---|---|---|
| 15 to 25 kg | 150N to 250N | 300mm to 380mm |
| 25 to 40 kg | 250N to 400N | 380mm to 420mm |
| 40 to 55 kg | 400N to 550N | 400mm to 435mm |
| 55 to 80 kg | 550N to 800N | 435mm to 500mm |
Gas Struts for Trailer Lid: Mounting and Fitting Considerations
Correct mounting position matters as much as the right strut specification. The gas lift must be mounted so the piston rod faces downward when the lid is closed. Mounting it rod-up causes the oil seal to migrate away from the piston, which accelerates seal wear and shortens the strut's service life significantly.
End fittings need to match your trailer's bracket configuration. Ball-socket fittings are the most common on trailer applications across Gauteng, but clevis pin and threaded fittings are also used on heavier utility trailers. Gas It Lift Struts confirms the correct end fitting type when supplying your strut, so you're not left trying to adapt a mismatched fitting on the day of installation.
If you're fitting gas struts to a canopy lid rather than a freestanding trailer, the same sizing principles apply. See the full range of canopy gas struts for bakkie canopy and hardtop applications, where hinge geometry and lid angle add further variables to the strut selection.
Trailer Gas Struts Supplied Across Gauteng
Gas It Lift Struts serves customers in Johannesburg, Pretoria, Centurion, Midrand, the East Rand, West Rand, North Rand, and all surrounding areas. From the industrial parks of Johannesburg to the smallholdings and agricultural properties on the outskirts of Pretoria, trailer owners across the province regularly require gas strut replacements for lids that have lost their holding force after years of outdoor exposure.
Nationwide courier delivery gets your strut to you within 2 to 3 business days, with same-day dispatch on orders placed before noon. Gas It Lift Struts stocks gas struts for trailer lid applications across a wide range of sizes and Newton ratings. If you're replacing a failed strut and need to match the existing specification, bring the old strut in or send through the measurements and the team will source a direct replacement.
For vehicle boot lid struts and bonnet applications, Gas It Lift Struts stocks a full range. See the boot gas struts and bonnet gas struts pages for vehicle-specific applications, or call the team directly to confirm the right part for your make, model, and application.
✆ Call +27 71 080 5429Our Services
Gas strut supply and fitting across all applications, in one place.
Canopy Gas Struts
Gas struts for bakkie canopy lids and hardtops. Correct force rating, correct length, 24-month warranty.
Canopy Gas Struts →Boot Gas Struts
Boot lid gas struts for sedans, hatchbacks, SUVs, and imported vehicles. OEM specifications throughout.
Boot Gas Struts →Bonnet Gas Struts
Bonnet strut replacements across all vehicle makes and models. Correct specification, fast dispatch.
Bonnet Gas Struts →Frequently Asked Questions
Common questions about gas struts for trailer lids in Gauteng.
What Newton rating do I need for my trailer lid gas strut?
The combined Newton rating of your gas struts should roughly match the weight of the lid in force terms. A 45kg trailer lid needs approximately 400N to 450N total. If you're fitting two struts, each strut carries half that load. Call Gas It Lift Struts with your lid weight and the team will confirm the correct rating.
How do I measure the correct length for a trailer lid gas strut?
The extended length of the strut should be between half and two-thirds of your trailer lid's total length. A 700mm lid needs a strut with an extended length of roughly 350mm to 465mm. You also need the compressed length to check it will clear your trailer's internal space when the lid is closed. If you're replacing an existing strut, measuring the old one gives you the fastest accurate reference.
Which way should the strut be mounted on a trailer lid?
The piston rod should face downward when the lid is in the closed position. Mounting the strut rod-up causes the internal oil seal to sit away from the piston during the majority of its working life, which accelerates wear and shortens service life. Gas It Lift Struts includes fitting guidance with every strut supplied.
Can I fit the gas strut to my trailer myself?
Most trailer lid gas struts are a straightforward replacement with basic hand tools. Ball-socket end fittings click directly onto their mounting studs without additional hardware. If the hinge geometry or bracket position requires adjustment, or if you want a professional fitment, Gas It Lift Struts offers installation services across Gauteng.
Do you stock gas struts for older or custom-built trailers?
Yes. Gas It Lift Struts stocks a wide range of gas struts across multiple lengths and Newton ratings, covering standard production trailers and custom-built utility, camping, and agricultural trailer applications. Call or WhatsApp with your measurements and the team will confirm availability and dispatch time.
How long does delivery take for gas struts for trailer lids?
Nationwide courier delivery typically arrives within 2 to 3 business days. Same-day dispatch is available on orders placed before noon. Customers across Gauteng, including Johannesburg, Pretoria, Centurion, and Midrand, can also arrange in-person collection or installation booking directly.
Need a Gas Strut for Your Trailer Lid? Call Us Today.
Speak directly to the team. Gas It Lift Struts matches the correct Newton rating and length to your trailer lid, with same-day dispatch available across Gauteng and nationwide courier delivery.